%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 1997-2016. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
%% You may obtain a copy of the License at
%%
%% http://www.apache.org/licenses/LICENSE-2.0
%%
%% Unless required by applicable law or agreed to in writing, software
%% distributed under the License is distributed on an "AS IS" BASIS,
%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
%% See the License for the specific language governing permissions and
%% limitations under the License.
%%
%% %CopyrightEnd%
%%
%%%----------------------------------------------------------------
%%% Kernel application test suite.
%%%-----------------------------------------------------------------
-module(kernel_SUITE).
-include_lib("common_test/include/ct.hrl").
%% Test server specific exports
-export([all/0, suite/0,groups/0,init_per_suite/1, end_per_suite/1,
init_per_group/2,end_per_group/2]).
-export([init_per_testcase/2, end_per_testcase/2]).
%% Test cases must be exported.
-export([app_test/1, appup_test/1, refc/1]).
suite() ->
[{ct_hooks,[ts_install_cth]},
{timetrap,{minutes,2}}].
all() ->
[app_test, appup_test, refc].
groups() ->
[].
init_per_suite(Config) ->
Config.
end_per_suite(_Config) ->
ok.
init_per_group(_GroupName, Config) ->
Config.
end_per_group(_GroupName, Config) ->
Config.
init_per_testcase(_Case, Config) ->
Config.
end_per_testcase(_Case, _Config) ->
ok.
%%
%% Test cases starts here.
%%
%% Tests the applications consistency.
app_test(Config) when is_list(Config) ->
ok=test_server:app_test(kernel),
ok.
%% Test that appup allows upgrade from/downgrade to a maximum of one
%% major release back.
appup_test(_Config) ->
appup_tests(kernel,create_test_vsns(kernel)).
appup_tests(_App,{[],[]}) ->
{skip,"no previous releases available"};
appup_tests(App,{OkVsns0,NokVsns}) ->
application:load(App),
{_,_,Vsn} = lists:keyfind(App,1,application:loaded_applications()),
AppupFileName = atom_to_list(App) ++ ".appup",
AppupFile = filename:join([code:lib_dir(App),ebin,AppupFileName]),
{ok,[{Vsn,UpFrom,DownTo}=AppupScript]} = file:consult(AppupFile),
ct:log("~p~n",[AppupScript]),
OkVsns =
case OkVsns0 -- [Vsn] of
OkVsns0 ->
OkVsns0;
Ok ->
ct:log("Current version, ~p, is same as in previous release.~n"
"Removing this from the list of ok versions.",
[Vsn]),
Ok
end,
ct:log("Testing that appup allows upgrade from these versions: ~p~n",
[OkVsns]),
check_appup(OkVsns,UpFrom,{ok,[restart_new_emulator]}),
check_appup(OkVsns,DownTo,{ok,[restart_new_emulator]}),
ct:log("Testing that appup does not allow upgrade from these versions: ~p~n",
[NokVsns]),
check_appup(NokVsns,UpFrom,error),
check_appup(NokVsns,DownTo,error),
ok.
create_test_vsns(App) ->
ThisMajor = erlang:system_info(otp_release),
FirstMajor = previous_major(ThisMajor),
SecondMajor = previous_major(FirstMajor),
Ok = app_vsn(App,[ThisMajor,FirstMajor]),
Nok0 = app_vsn(App,[SecondMajor]),
Nok = case Ok of
[Ok1|_] ->
[Ok1 ++ ",1" | Nok0]; % illegal
_ ->
Nok0
end,
{Ok,Nok}.
previous_major("17") ->
"r16b";
previous_major("r16b") ->
"r15b";
previous_major(Rel) ->
integer_to_list(list_to_integer(Rel)-1).
app_vsn(App,[R|Rs]) ->
OldRel =
case test_server:is_release_available(R) of
true ->
{release,R};
false ->
case ct:get_config({otp_releases,list_to_atom(R)}) of
undefined ->
false;
Prog0 ->
case os:find_executable(Prog0) of
false ->
false;
Prog ->
{prog,Prog}
end
end
end,
case OldRel of
false ->
app_vsn(App,Rs);
_ ->
{ok,N} = test_server:start_node(prevrel,peer,[{erl,[OldRel]}]),
_ = rpc:call(N,application,load,[App]),
As = rpc:call(N,application,loaded_applications,[]),
{_,_,V} = lists:keyfind(App,1,As),
test_server:stop_node(N),
[V|app_vsn(App,Rs)]
end;
app_vsn(_App,[]) ->
[].
check_appup([Vsn|Vsns],Instrs,Expected) ->
case systools_relup:appup_search_for_version(Vsn, Instrs) of
Expected -> check_appup(Vsns,Instrs,Expected);
Other -> ct:fail({unexpected_result_for_vsn,Vsn,Other})
end;
check_appup([],_,_) ->
ok.
%%% Check that refc module handles the counters as expected
refc(_Config) ->
Enable = fun(Enable) -> erlang:system_flag(scheduler_wall_time, Enable) end,
IsOn = fun() -> undefined /= erlang:statistics(scheduler_wall_time) end,
Tester = self(),
Loop = fun Loop() ->
receive
die -> normal;
{apply, Bool} ->
Res = Enable(Bool),
Tester ! {self(), Res},
Loop()
end
end,
%% Counter should be 0
false = Enable(false),
false = Enable(true),
true = Enable(true),
true = Enable(false),
true = Enable(false),
%% Counter should be 0
false = IsOn(),
P1 = spawn_link(Loop),
P1 ! {apply, true},
receive {P1, R1} -> false = R1 end,
%% P1 has turned it on counter should be one
true = IsOn(),
true = Enable(true),
true = Enable(false),
true = IsOn(),
P1 ! {apply, false},
receive {P1, R2} -> true = R2 end,
false = IsOn(),
P1 ! {apply, true},
receive {P1, R3} -> false = R3 end,
true = IsOn(),
true = Enable(false),
P1 ! die,
timer:sleep(100),
false = IsOn(),
false = Enable(false),
P2 = spawn_link(Loop),
P2 ! {apply, true},
receive {P2, R4} -> false = R4 end,
true = IsOn(),
P2 ! {apply, true},
receive {P2, R5} -> true = R5 end,
true = IsOn(),
P2 ! die,
timer:sleep(100),
false = IsOn(),
ok.
